Home / 8,208.32-12,312-2,942.96

Finding the Fourth Proportional to 8,208.32, 12,312 and 2,942.96

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Solution

The fourth proportional to 8,208.32, 12,312 and 2,942.96 is: 4,414.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.32 : 12,312 = 2,942.96 : x
  2. Step 2: Convert to fraction form
    8,208.32/12,312 = 2,942.96/x
  3. Step 3: Cross multiply
    8,208.32x = 12,312 × 2,942.96
  4. Step 4: Simplify right side
    8,208.32x = 36,233,723.52
  5. Step 5: Solve for x
    x = 36,233,723.52/8,208.32
  6. Step 6: Final answer
    x = 4,414.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.